Hot Tub Maintenance Tips for Utah Winters

There's nothing better than sinking into a hot tub on a cold Utah night — steam rising, stars overhead, maybe some snow falling. But Utah winters bring specific challenges for hot tub owners that you won't find in most generic maintenance guides.

Keep the Temperature Consistent

In Utah winters, your hot tub heater works harder than you might think. When it's 20 degrees outside and you want 102-degree water, that's an 80+ degree temperature difference your heater has to maintain. Our recommendation: keep your hot tub at your desired temperature all winter long, even if you're not using it daily.

Turning it down to "save energy" and then cranking it back up actually uses more electricity than maintaining a steady temperature. Plus, temperature swings can stress your equipment and make water chemistry harder to manage.

Your Cover Is Your Best Friend

A good hot tub cover does 90% of the work in winter. It keeps heat in, snow out, and prevents evaporation (which is accelerated by Utah's dry winter air). Here's what to watch for:

• Remove snow from the cover after storms — heavy snow loads can warp or crack covers
• Check the cover's seal around the edges. Gaps let heat escape and increase your energy bill
• If the cover feels heavier than when you bought it, the foam core is waterlogged and needs replacing
• Use cover lifter hardware to avoid dragging the cover across the spa shell (prevents scratches)
• If your cover is more than 5 years old, it's probably time for a new one. A good cover pays for itself in energy savings within a year

Winter Water Chemistry

Cold weather changes how your water chemistry behaves. pH tends to rise in winter because cold water holds carbon dioxide differently. You'll likely need to add pH decreaser more often than in summer.

Sanitizer (chlorine or bromine) gets used up faster when there's a big temperature differential between water and air. The constant heating and cooling cycle at the surface accelerates chemical breakdown. You may need to increase your sanitizer slightly compared to summer levels.

Utah's hard water doesn't take a break in winter. Calcium scaling still happens, and it's harder to spot if you're not checking regularly. We test calcium hardness on every service visit.

Freeze Protection

Most modern hot tubs have built-in freeze protection — sensors that automatically turn on the circulation pump when the water temperature drops below a certain threshold. This is critical in Utah, where temperatures can plummet to single digits or below zero.

If you're going out of town during winter, make sure someone checks on your hot tub. A power outage during a cold snap can be devastating. Some owners install a temperature alarm that sends a notification if the water drops below a safe level.

Drain and Refill Schedule

Even in winter, you should drain and refill your hot tub every 3-4 months. When you drain in winter, do it on a day when temperatures are above freezing and you can get it refilled and heated quickly. We typically aim for mid-morning on a clear day. The whole process — drain, clean, refill, and reheat — takes about 4-6 hours depending on the tub size.

When to Call a Pro

• Water isn't heating properly or takes much longer than usual
• You notice ice forming on the shell or around the equipment
• The circulation pump is making unusual noises
• Error codes appear on the control panel
• Water is cloudy or has an odor despite normal chemical readings
• The cover is damaged and no longer sealing properly

Winter issues tend to get worse fast because of the cold. A small leak that would be a minor fix in summer can become a frozen, cracked pipe overnight in January. If something seems off, don't wait.